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Solving Constraint Integer Programs
presol_dualcomp.h
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/* */
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/* This file is part of the program and library */
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/* SCIP --- Solving Constraint Integer Programs */
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/* */
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/* Copyright (C) 2002-2017 Konrad-Zuse-Zentrum */
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/* fuer Informationstechnik Berlin */
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/* */
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/* SCIP is distributed under the terms of the ZIB Academic License. */
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/* */
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/* You should have received a copy of the ZIB Academic License */
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/* along with SCIP; see the file COPYING. If not email to scip@zib.de. */
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/* */
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/**@file presol_dualcomp.h
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* @brief dual compensation presolver
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* @author Dieter Weninger
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*
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* This presolver looks for variables with
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* i) objcoef >= 0 and exactly one downlock
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* ii) objcoef <= 0 and exactly one uplock
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* and fixes the variable in case i) at the lower bound and in case ii) at the
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* upper bound if a combination of singleton continuous variables can compensate
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* the downlock in case i) and the uplock in case ii).
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*/
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/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
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#ifndef __SCIP_PRESOL_DUALCOMP_H__
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#define __SCIP_PRESOL_DUALCOMP_H__
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#include "
scip/scip.h
"
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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/** creates the dualcomp presolver and includes it in SCIP
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*
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* @ingroup PresolverIncludes
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*/
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extern
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SCIP_RETCODE
SCIPincludePresolDualcomp
(
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SCIP
*
scip
/**< SCIP data structure */
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);
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#ifdef __cplusplus
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}
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#endif
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#endif
Scip
Definition:
struct_scip.h:58
SCIP_RETCODE
enum SCIP_Retcode SCIP_RETCODE
Definition:
type_retcode.h:53
SCIPincludePresolDualcomp
SCIP_RETCODE SCIPincludePresolDualcomp(SCIP *scip)
Definition:
presol_dualcomp.c:813
scip
Definition:
objbranchrule.h:33
scip.h
SCIP callable library.